Paging message sending method and device

Abstract

Embodiments of the present disclosure include a mobility management entity (MME) receives a downlink data notification (DDN) message sent by a serving gateway (SGW), where the DDN message carries an identity of user equipment, and the DDN message is used to instruct the MME to send a paging message to a base station in a tracking area list (TA list) of the user equipment. After enabling an aggregate paging function, the MME determines, according to the DDN message, whether a priority of the user equipment is higher than a preset level. If the priority of the user equipment is higher than the preset level, the MME directly sends the paging message to the base station. The present disclosure is applicable to a paging message sending process.

What is claimed is: 
     
       1. A paging message sending method, comprising:
 receiving, by a serving gateway (SGW), an aggregate paging indication from a mobility management entity (MME); 
 after receiving a downlink packet, obtaining, by the SGW, quality of service (QoS) information of a user equipment that is to receive the downlink packet, wherein the QoS information of the user equipment comprises a QoS class identifier (QCI) and allocation/retention priority (ARP) information; 
 determining, by the SGW, whether a priority of the user equipment is higher than a preset level according to the QoS information of the user equipment; and 
 in response to determining that the priority of the user equipment is higher than the preset level, sending, by the SGW to the MME, a downlink data notification (DDN) message that carries a high priority paging (HPP) indication. 
 
     
     
       2. The method according to  claim 1 , wherein the aggregate paging indication is used to indicate that the MME is to send a paging message by means of aggregate paging. 
     
     
       3. The method according to  claim 1 , wherein the DDN message is used to instruct the MME to send a paging message to a base station in a tracking area (TA) list of the user equipment, wherein the HPP indication is used to indicate that the priority of the user equipment is higher than the preset level. 
     
     
       4. The method according to  claim 1 , further comprising:
 receiving, by the MME, the DDN message; and 
 determining, by the MME according to the DDN message after enabling an aggregate paging function, whether a priority of the user equipment is higher than the preset level; and 
 directly sending, by the MME in response to the received DDN message, the paging message to the base station in a tracking area (TA) list of the user equipment when the priority of the user equipment is higher than the preset level. 
 
     
     
       5. A non-transitory computer-readable medium storing computer instructions for execution by one or more processors, wherein the computer instructions instruct the one or more processors to perform the operations of:
 receiving an aggregate paging indication from a mobility management entity (MME); 
 after receiving a downlink packet, obtaining quality of service (QoS) information of a user equipment that is to receive the downlink packet, wherein the QoS information of the user equipment comprises a QoS class identifier (QCI) and allocation/retention priority (ARP) information; 
 determining whether a priority of the user equipment is higher than a preset level according to the QoS information of the user equipment; and 
 in response to determining that the priority of the user equipment is higher than the preset level, sending, to the MME, a downlink data notification (DDN) message that carries a high priority paging (HPP) indication, wherein 
 the DDN message is used to instruct the MME to send a paging message to a base station in a tracking area (TA) list of the user equipment, wherein the HPP indication is used to indicate that the priority of the user equipment is higher than the preset level. 
 
     
     
       6. The non-transitory computer-readable medium according to  claim 5 , wherein the aggregate paging indication is used to indicate that the MME is to send a paging message by means of aggregate paging. 
     
     
       7. The non-transitory computer-readable medium according to  claim 5 , wherein the DDN message is used to instruct the MME to send a paging message to a base station in a tracking area (TA) list of the user equipment, wherein the HPP indication is used to indicate that the priority of the user equipment is higher than the preset level. 
     
     
       8. A system, comprising a serving gateway (SGW) and a mobility management entity (MME); wherein:
 The SGW is configured to:
 receive an aggregate paging indication from the MME; 
 obtain quality of service (QoS) information of a user equipment that is to receive the downlink packet after receiving a downlink packet, wherein the QoS information of the user equipment comprises a QoS class identifier (QCI) and allocation/retention priority (ARP) information; 
 determine whether a priority of the user equipment is higher than a preset level according to the QoS information of the user equipment; and 
 in response to determining that the priority of the user equipment is higher than the preset level, send, to the MME, a downlink data notification (DDN) message that carries a high priority paging (HPP) indication. 
 
 
     
     
       9. The system according to  claim 8 , wherein the aggregate paging indication is used to indicate that the MME is to send a paging message by means of aggregate paging. 
     
     
       10. The system according to  claim 8 , wherein the DDN message is used to instruct the MME to send a paging message to a base station in a tracking area (TA) list of the user equipment, wherein the HPP indication is used to indicate that the priority of the user equipment is higher than the preset level. 
     
     
       11. The system according to  claim 8 , wherein the MME is configured to:
 receive the DDN message; and 
 determine, according to the DDN message after enabling an aggregate paging function, whether a priority of the user equipment is higher than the preset level; and 
 directly send, in response to the received DDN message, the paging message to the base station in a tracking area (TA) list of the user equipment when the priority of the user equipment is higher than the preset level.